# 1050 Estrella Pit

- **MSHA mine ID:** 0202372
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Apache, AZ
- **Operator:** Arcosa Aggregates West, LLC.
- **Controller:** Arcosa, Inc
- **Public source rows linked:** 924
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Arcosa, Inc (0144281) → Arcosa Aggregates West, LLC. (0186133) → 1050 Estrella Pit (0202372)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **DAVID M  DAY → Day and Sons LLC:** 1987-05-01 through 2005-10-02; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Steve J  Hood et al → White Mountain Rock Products, LLC:** 2005-10-03 through 2014-02-11; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Chris J  Reinesch et al → White Mountain Rock Products, LLC:** 2005-10-03 through 2014-02-11; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Steve J  Hood et al → Southwest Rock Products LLC:** 2014-02-12 through 2021-08-03; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Chris J  Reinesch et al → Southwest Rock Products LLC:** 2014-02-12 through 2021-08-03; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Chris  Reinesch et al → Southwest Rock Products LLC:** 2014-02-12 through 2005-12-18; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Rochelle  Reinesch et al → Southwest Rock Products LLC:** 2014-02-12 through 2005-12-18; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Arcosa, Inc → Southwest Rock Products LLC:** 2021-08-04 through 2021-08-03; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Arcosa, Inc → White Mountain Properties:** 2021-08-04 through 2024-09-08; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.
- **Arcosa, Inc → Arcosa Aggregates West, LLC.:** 2024-09-09 through current/open; derived from co-tenure at mine 0202372; source `msha-controller-operator-history`.

- History rows: 10
- Typed edges: 21
- Interval anomalies: 3
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 1 since 2021:** Accidents and injuries 1 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 39 since 2021:** Violations and penalties 125 violation rows across the full record; 38 carry an S&S flag and $29,532 appears in current assessed amounts.
3. **HEALTH — 19 samples:** Occupational health samples 19 personal. 3 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 13K employee hours and 23 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 19 linked rows:** Contests, conferences and decisions 9 contested-violation rows, 9 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 2 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 10 since 2021:** Inspections 47 inspection events and 647 published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 56.12032 — Inspection and cover plates.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **30 CFR 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2025-06-05 through 2025-06-05; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2025-10-23 through 2025-10-23; source ID `msha-addresses`
- **Assessed Violations:** 112 rows; 2004-04-07 through 2026-06-02; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 9 rows; 2014-12-23 through 2025-08-21; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2025-04-21 through 2025-04-21; source ID `msha-conferences`
- **Contested Violations:** 9 rows; 2014-05-14 through 2024-09-26; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 314 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 57 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 10 rows; 1987-05-01 through 2024-09-09; source ID `msha-controller-operator-history`
- **Inspections:** 47 rows; 2002-11-05 through 2026-06-11; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 185 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 33 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 19 rows; 2005-07-20 through 2026-02-10; source ID `msha-personal-health-samples`
- **Violations:** 125 rows; 2004-04-07 through 2026-06-02; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/1050-estrella-pit-0202372`
- JSON: `/api/v1/mines/1050-estrella-pit-0202372`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0202372/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0202372/relationships`
- MCP resource: `mine://0202372/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`